The Power Grip Rope and Handle Package features a 1 Diameter Grip, Durable Aluminum core and 4 Vinyl End Caps. The 70 8-section Mainline features AWSA color coded rope lengths from longline through 39.5 off(10.75m), giving users a single rope to cover beginners through the super advanced. Its a great all around rope for general boating, The 70 5-section Mainline version features AWSA color coded rope lengths from longline through 32off(13m), for beginners through intermediate without all of those excess knots.